GPT-5, a new release from OpenAI, is the latest product to suggest that progress on large language models has stalled.

Anthropic upgrades Claude Sonnet 4 to a 1M token context window and adds memory, enabling full codebase analysis, long ...

AI startup Anthropic has upgraded its Claude 4 Sonnet model to support a 1 million token context window, a five-fold increase ...

The company today revealed that Claude Sonnet 4 now supports up to 1 million tokens of context in the Anthropic API — a five-fold increase over the previous limit.